CA2558437A1 - Compact multi-use lancing device - Google Patents

Compact multi-use lancing device Download PDF

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Publication number
CA2558437A1
CA2558437A1 CA002558437A CA2558437A CA2558437A1 CA 2558437 A1 CA2558437 A1 CA 2558437A1 CA 002558437 A CA002558437 A CA 002558437A CA 2558437 A CA2558437 A CA 2558437A CA 2558437 A1 CA2558437 A1 CA 2558437A1
Authority
CA
Canada
Prior art keywords
lancet
housing
lancing
lancing device
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002558437A
Other languages
French (fr)
Other versions
CA2558437C (en
Inventor
Bradley Koeppel
William Elias Conway
Brian Vanhiel
Jack Griffis
David R. Buenger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Facet Technologies LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2558437A1 publication Critical patent/CA2558437A1/en
Application granted granted Critical
Publication of CA2558437C publication Critical patent/CA2558437C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
    • A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150442—Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058—Joining techniques used for protective means
    • A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694—Procedure for removing protection means at the time of piercing
    • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
    • A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit

Abstract

A multi-use micro-sampling or lancing device (10) having an outer housing (12), a lancet holder (32) that engages a lancet (30) and constrains the lancet along a controlled and predefined path of travel during the lancing stroke, and a drive mechanism with a pair of opposed, off axis torsion springs (80,82) working in tandem to drive and return the lancet holder through its lancing stroke.

Claims (18)

1. ~A lancing device comprising:
a compact housing;
a lancet holder for a holding a lancet and mounted for back and forth movement along a lancing stroke path within the housing; and a drive mechanism comprising at least one off-axis spring coupled to the lancet holder, the at least one off-axis spring being positioned laterally offset from the lancing stroke path of the lancet holder.
2. ~The lancing device of Claim 1, wherein the compact housing has a width comparable to the length of the housing.
3. ~The lancing device of Claim 1, further comprising a trigger to trigger the lancing stroke.
4. ~The lancing device of Claim 3, wherein the lancet holder is barbed to hold the lancet holder in a ready position, ready for triggering.
5. ~The lancing device of Claim 4, wherein the barbed lancet holder comprises compression arms each having at least one chamfered barb, and wherein the trigger engages the chamfered barbs to trigger the lancing stroke.
6. ~The lancing device of Claim 1, wherein the at least one spring comprises a drive spring for driving the lancet holder along the lancing stroke and an opposing return spring for returning the lancet holder.
7. ~The lancing device as claimed in Claim 1, wherein the compact housing is about twice as long as a lancet used therein.
8. ~A lancing device, comprising:
a compact housing having a length and a width, wherein the length of the housing is roughly the same as the width of the housing;
a drive mechanism within the housing for driving a lancet along a pre-defined path, the drive mechanism comprising:
a carrier for securely holding the lancet;
a first spring for urging the lancet from an initial position into an extended position wherein a portion of the lancet protrudes out of the compact housing;
and a second spring for retracting the lancet back into the housing.
9. ~The lancing device of Claim 8, and further comprising a trigger for triggering the drive mechanism.
10. The lancing device of Claim8, wherein the springs are positioned laterally offset from the pre-defined path.
11. The lancing device of Claim 8, wherein the length of the housing is between about two and four times the length of the lancet used therein.
12. A lancing device, comprising:
a compact, non-elongated housing;

a drive mechanism for movably supporting a lancet along a lancing stroke;
a trigger for triggering the drive mechanism; and wherein the housing has a length of no more than about four times as long as the length of the lancet used therein.
13. ~The housing of Claim 12, wherein the housing is about twice as long as the lancet.
14. ~The lancing device of Claim 12, wherein the housing has a width roughly equal to its length.
15. ~The lancing device of Claim 12, wherein the housing is puck-like.
16. ~The lancing device of Claim 12, wherein the drive mechanism includes off-axis springs for urging the lancet back and forth along the lancing stroke, the off-axis springs being laterally offset from the lancing stroke.
17. ~A method of collecting a sample of fluid, comprising:
inserting a lancet into a carrier of a multi-use sampling device;
aligning an opening of the device at a site to be lanced;
pressing an activating button having a post for contacting a chamfered barb of the carrier to release the carrier; and collecting a sample of fluid.
18. ~The method of Claim 17, wherein the step of inserting a lancet into a carrier further includes pushing the lancet towards the rear of the device until the chamfered barb of the carrier locks into a ready position.
CA2558437A 2004-03-02 2005-03-02 Compact multi-use lancing device Active CA2558437C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US54931704P 2004-03-02 2004-03-02
US60/549,317 2004-03-02
PCT/US2005/006519 WO2005084557A1 (en) 2004-03-02 2005-03-02 Compact multi-use lancing device

Publications (2)

Publication Number Publication Date
CA2558437A1 true CA2558437A1 (en) 2005-09-15
CA2558437C CA2558437C (en) 2010-09-14

Family

ID=34919468

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2558437A Active CA2558437C (en) 2004-03-02 2005-03-02 Compact multi-use lancing device

Country Status (5)

Country Link
US (2) US7481819B2 (en)
EP (1) EP1722692B1 (en)
JP (1) JP4772777B2 (en)
CA (1) CA2558437C (en)
WO (1) WO2005084557A1 (en)

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CA2558437C (en) 2010-09-14
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EP1722692A4 (en) 2010-01-27
US20090099586A1 (en) 2009-04-16
JP4772777B2 (en) 2011-09-14
US20070255302A1 (en) 2007-11-01
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WO2005084557A1 (en) 2005-09-15
US8034068B2 (en) 2011-10-11

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